Electronics Worksheet: Electrical Safety

Electronics lesson 2: Electrical safety · Set 11 · 40 questions

Remember (Low, dry, with an adult): Never use mains sockets (about 230 V) for projects; never open chargers or poke into sockets. Water carries current: dry hands, no drinks near circuits, no switches when wet. Use small battery cells with an adult; stop if a part gets hot; keep away from fallen wires, poles and kites near power lines.

1. 1.⚠️ Is it safe to open a phone charger? (a) safe (b) not safe
2. 2.⚠️ Why must we never touch switches with wet hands? (a) it is just untidy (b) water carries current (c) it spoils the paint (d) water makes it cold
3. 3.⚠️ Is it safe to climb an electric pole? (a) not safe (b) safe
4. 4.Which of these is not safe? (a) fly kites in open fields (b) stop if a part gets hot (c) stay away from pylons (d) climb an electric pole
5. 5.🔍 Which is the odd one out? (a) dry your hands first (b) stay away from pylons (c) take cells out after use (d) touch a switch when wet
6. 6.⚠️ Which power source should children use for electronics projects? (a) an inverter socket (b) a mains extension board (c) a wall socket (d) a small battery pack
7. 7.⚠️ Is it safe to fly a kite near wires? (a) safe (b) not safe
8. 8.Which of these is safe? (a) climb an electric pole (b) touch a switch when wet (c) take cells out after use (d) throw cells in a fire
9. 9.🔍 Which is the odd one out? (a) stop if a part gets hot (b) build with an adult near (c) stay away from pylons (d) throw cells in a fire
10. 10.True or false: to stay away from pylons is safe. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) throw cells in a fire (b) use mains for a project (c) take cells out after use (d) use a cable with cuts
12. 12.True or false: to fly a kite near wires is safe. (a) False (b) True
13. 13.⚠️ A cell gets hot when its + and − ends are joined by a bare wire. What is this called? (a) a safe circuit (b) an open circuit (c) a short circuit (d) a parallel circuit
14. 14.⚠️ Is it safe to fly kites in open fields? (a) safe (b) not safe
15. 15.Which of these is safe? (a) poke things in a socket (b) fly kites in open fields (c) use a cable with cuts (d) touch a switch when wet
16. 16.Which of these is not safe? (a) touch a switch when wet (b) stop if a part gets hot (c) dry your hands first (d) take cells out after use
17. 17.⚠️ Who should be with you when you build a circuit? (a) nobody (b) a stranger online (c) a younger child (d) a trusted adult
18. 18.Which of these is safe? (a) poke things in a socket (b) stay away from pylons (c) use a cable with cuts (d) throw cells in a fire
19. 19.🔍 Which is the odd one out? (a) touch a switch when wet (b) poke things in a socket (c) build with an adult near (d) use a cable with cuts
20. 20.🔍 Which is the odd one out? (a) use mains for a project (b) touch a fallen wire (c) throw cells in a fire (d) dry your hands first
21. 21.⚠️ Is it safe to take cells out after use? (a) safe (b) not safe
22. 22.True or false: to poke things in a socket is not safe. (a) False (b) True
23. 23.⚠️ Is it safe to touch a fallen wire? (a) safe (b) not safe
24. 24.⚠️ About how many volts do home sockets in India supply? (a) 9 V (b) 12 V (c) 230 V (d) 1.5 V
25. 25.Which of these is not safe? (a) take cells out after use (b) dry your hands first (c) fly kites in open fields (d) touch a fallen wire
26. 26.🔍 Which is the odd one out? (a) climb an electric pole (b) use small battery cells (c) build with an adult near (d) keep drinks far away
27. 27.True or false: to use small battery cells is not safe. (a) False (b) True
28. 28.Which of these is not safe? (a) fly kites in open fields (b) poke things in a socket (c) use small battery cells (d) take cells out after use
29. 29.🔍 Which is the odd one out? (a) touch a fallen wire (b) take cells out after use (c) use small battery cells (d) fly kites in open fields
30. 30.⚠️ Is it safe to poke things in a socket? (a) safe (b) not safe
31. 31.⚠️ Is it safe to stay away from pylons? (a) not safe (b) safe
32. 32.⚠️ Is it safe to build with an adult near? (a) not safe (b) safe
33. 33.⚠️ Is it safe to stop if a part gets hot? (a) not safe (b) safe
34. 34.⚠️ Is it safe to use small battery cells? (a) not safe (b) safe
35. 35.⚠️ Is it safe to touch a switch when wet? (a) not safe (b) safe
36. 36.⚠️ What protects home wiring by melting or tripping when too much current flows? (a) a bulb (b) a long wire (c) a plug top (d) a fuse or MCB
37. 37.🔍 Which is the odd one out? (a) poke things in a socket (b) stop if a part gets hot (c) fly a kite near wires (d) use a cable with cuts
38. 38.True or false: to touch a switch when wet is safe. (a) True (b) False
39. 39.⚠️ Is it safe to throw cells in a fire? (a) safe (b) not safe
40. 40.⚠️ Is it safe to use mains for a project? (a) safe (b) not safe

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